[Numpy-discussion] Output dtype
Keith Goodman
kwgoodman at gmail.com
Wed Jan 12 12:28:05 EST 2011
On Wed, Jan 12, 2011 at 8:20 AM, Bruce Southey <bsouthey at gmail.com> wrote:
> On 12/13/2010 04:53 PM, Keith Goodman wrote:
>> On Mon, Dec 13, 2010 at 12:20 PM, Bruce Southey<bsouthey at gmail.com> wrote:
>>
>>> Unless something has changed since the docstring was written, this is
>>> probably an inherited 'bug' from np.mean() as the author expected that
>>> the docstring of mean was correct. For my 'old' 2.0 dev version:
>>>
>>> >>> np.mean( np.array([[0,1,2,3,4,5]], dtype='float32'), axis=1).dtype
>>> dtype('float32')
>>> >>> np.mean( np.array([[0,1,2,3,4,5]], dtype='float32')).dtype
>>> dtype('float64')
>> Are you saying the bug is in the doc string, the output, or both? I
>> think it is both; I expect the second result above to be float32.
>>
>>
> Sorry as I filed a bug for this as 1710
> http://projects.scipy.org/numpy/ticket/1710
> but this is the same as ticket 518 that is listed as won't fix:
> http://projects.scipy.org/numpy/ticket/518
I fixed ticket 518 in bottleneck:
>> a = np.array([1,2,3], dtype='float32')
>> bn.median(a).dtype
dtype('float32')
>> np.median(a).dtype
dtype('float64')
Not sure I would have done that if I knew that numpy has a won't fix on it.
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